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0.- VON BEGHTOLSHEIM. GENTRIFUGAL LIQUID SEPARATOR.

No. 466,484. Patented Jan; 5,1892.

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UNITED STATES PATENT OFFICE.

CLEMENS VON BEOHTOLSHEIM, OF STOOKHOLM, SWEDEN, ASSIGNOR TO THEAKTIEBOLAGET SEPARATOR, OF SAME PLACE.

CENTRI FUGAL LlQUlD-SEPARATOR.

SPECIFICATION forming part of Letters Patent No. 466,484, dated January5, 1892. Application filed September 29, 1890- Serial No. 366,521. (Nomodel.)

trifugal separators which are provided with imperforate bowls and whichare employed for separating compound liquids into liquids of differentgravities. As these separators are used principally for creaming milk, Iwill describe my improvements as embodied in a centrifugal creamer.

The objects of my invention are to produce a tight joint between thebowl and its cover;

to eifect a separation of solid matter-such as hair, manure, &c.-fromthe milk before it enters the separating-space of the bowl; to hold theseparating disks or cones tightlyin place, and to provide means fornicely adj usting the cream-discharge.

In the accompanying drawings, consisting of two sheets, Figure 1 is asectional elevation of a centrifugal creamer provided with myimprovements. Fig. 2 is a top plan view of the neck of the bowl, Fig. 3is a sectional elevation of the joint between the cover and bowl on anenlarged scale. Fig. 4 is a bottom plan view of the cover of the bowl.Fig. 5 is a horizontal section in line a: 00, Fig. 1.

Like letters of reference refer to like parts in the several figures.

A represents the spindle, and B the body of the bowl, having a closedbottom and an open top, which is provided with an external screw-threadb. C is the cover of the bowl,

tapering upwardly and provided with a contracted neck'in which thedischarge-orifices for the cream and skim-milk are formed. The cover isprovided with a peripheral flange having an internal screw-thread c,which engages with the external thread of the bowl and by which thecover is attached thereto. The annular top surface of the bowl isprovided with a groove d, in which a projecting rubber ring D isarranged. The cover is provided at the base of its internal screw-threadwith a narrow annular shoulder e, which bears upon the together a groovewhich is open toward the axis of the bowl and which causes the liquid inthe bowl to be pressed by centrifugal force outwardly against the innerside of the rubber ring. When the cover is attached to the bowl, the twoshoulders e e of the cover and bowl are in contact with each other andthe packing-ring is sufficiently loose to be pressed outwardly by thecentrifugal force acting upon the liquid in the bowl and upon the rubberring against the portions of the cover and bowl which extend,respectively, above and below the joint, and as the ring entirely coversthe joint a perfectly-tight joint is formed, which is the tighter thefaster the bowl rotates. Heretofore it was impossible to produce a tightjoint at this point, owing to the excessive pressure which is generatedin the outer portion of the liquid at the high speed at which thesemachines are operated. This difficulty is entirely overcome by theabove-described construction, because the pressure of the liquid isutilized for tightening the packing.

F represents the milk-receptacle, provided with a discharge-pipe f,which depends into the neck of the bowl.

G represents the feed-cup, arranged centrally on the bottom of the bowl,and H a pipe which extends from the neck of the bowl to the feed-cup andconducts the milk to the latter. The neck of the bowl is provided at itsupper end with an inwardlyprojecting flange z, in which the upper end ofthe pipe H fits snugly. The feed-cup is provided at its middle with araised cone g, and the lower end of the pipe H is provided above saidcone with a flaring mouth h, which confines the milk as it spreads overthe cone and conducts it to the bottom of the cup. The latter isconstructed with an imperforate peripheral wall, which tapers upwardlyand is provided at the top with an inwardly-turned rim, over which themilk escapes from the cup into the separating-space of the bowl.

K represents conical division rings arranged in the separating-space ofthe bowl between the bottom and the cover, as described in LettersPatent 015 the United States No. 432,719, granted to me July 22, 1890.

L represents radial vertical ribs secured to the outer side of the tubeII and formin g therewith a core around which the rings K are arranged.These ribs rest byoffsets upon the top rim of the feed-cup andhavebottom portionsl, which extend intothefeed-cup and through theflaring bottom h of the pipe H to the cone g. These bottom portions ofthe ribs cause the milk to rotate in the feed-cup, and this rotationdrives the solid matter-such as hairs, manure, dyer-against theimperforate peripheral wall of the feed-cup, where it remains, therebypreventing it from reaching and obstructing the numerous division -ringsand the bowl.

M represents a curtain or annular flange, which depends from the covernear the inner surface of the bowl and rests upon the top division-ring,thereby holding the rings in place.

m represents the skim-milk pipes, which extend from the flange M to andthrough the neck of the bowl.

N represents the inclosing casing, and n the skim-milk trough, whichrests thereon and surrounds the upper portion of the cover so as toreceive the skim-milk from the pipesm.

0 represents the cream-notch formed in the inner surface of the topflange t of the neck of the bowl, and made preferably angular with theapex turned outwardly.

1) represents a channel or groove formed in the top of the neck of thebowl and extending from the cream-notch to the periphery of the neck, soas to deliver the cream laterally from the cream-notch. This channel ispreferably inclined rearwardly;or,in other words, the inner receivingend of the channel is arranged in advance of the outer discharging endin the direction in which the bowl rotates to reduce the force withwhich the cream is thrown from the neck.

P represents an adjusting-screw, which is arranged radially in the neckand projects with its inner end into the cream-notch below thedischarge-channel, so that the cream must flow over this screw inescaping from the notch into the channel. The inner portion of the screwforms, therefore, an adjustable dam, which controls the discharge of thecream and which can be adjusted toward and from the axis of the bowl toregulate the discharge.

I do not claim, broadly, a packing-ring interposed between the bowl andthe cover, nor, broadly, a packing-ring pressed outward by centrifugalforce.

I claim as my invention 1. The combination, with the bowl and the coverprovided with adjacent recessed portions which form a groove which opensinwardly and between the top and bottom of said groove with shoulderswhich bear against each other, of a packing-ring arranged loosely insaid groove and covering the joint between said shoulders, whereby thepacking-ring is pressed outwardly against said joint by the centrifugalforce acting upon the liquid in the bowl and upon thepacking-ring,substantially as set forth.

2. The combination, with the bowl, of a feed-cup having an imperforatebottom and peripheral wall and an open top, and wings or blades arrangedwithin the feedcup, whereby the liquid is causcd to rotate in thefeedcup and the solid matter is deposited in the cup, while the liquidescapes over the top thereof into the bowl, substantially as set forth.

3. The combination, with the bowl, of a feed-cup having an imperforatebottom and peripheral wall and open top, wings or blades arranged withinthe feed-cup, and divisionrings arranged in the separating-space of thebowl, whereby the solid matter is deposited in the feed-cup andseparated from the liquid before the latter reaches the divisionrings,substantially as set forth.

4. The combination, with the bowl, of a feed-cup having an imperforatebottom and peripheral wall and open top, a core consisting of a centraltube and radial wings extending into the feed-cup, and division-ringsarranged in the separating-space of the bowl around said core,substantially as set forth.

5. The combination, with the bowl, of snperposed division-rings arrangedin the separating-space of the bowl, and a cover provided with adepending flange or curtain which bears upon the uppermost divisionring,substantially as set forth.

In testimony that I claim the foregoing as my invention I have signed myname, in pres ence of two witnesses, this 6th day of September, 1890.

CLEMENS VON BECHIOLSIIEIM.

Witnesses:

E. HAASE, STEN ERICSSON.

